Bitter cold arctic air with temperatures of 15 to 30 below zero, and winds of 15 to 35 mph and gusts up to 45 mph, resulted in wind chills of 40 to near 60 below zero. These conditions developed over west and central North Dakota Saturday the ninth, and continued into the morning and early afternoon hours of Sunday the tenth. These conditions followed blizzard or near blizzard conditions on the eighth and ninth.

Event Narrative

Wind chills of 40 to 55 below zero with wind speeds of 15 to 35 mph persisted for over 24 hours. The lowest wind chill recorded was 51 below zero at Mohall.